scholarly journals Printed Circuit Board Drilling Machine Using Recyclables

Electronics ◽  
2018 ◽  
Vol 7 (10) ◽  
pp. 240 ◽  
Author(s):  
Carlos Robles-Algarín ◽  
William Echavez ◽  
Aura Polo
Keyword(s):  
Printed Circuit Board ◽  
Maximum Size ◽  
Transmission Mechanism ◽  
Circuit Board ◽  
Pid Controllers ◽  
Drilling Machine ◽  
Printed Circuit ◽  
Dc Motors ◽  
The Status ◽  
And Control

The implementation of a printed circuit board (PCB) drilling machine using recyclable materials and computer-aided control is presented. A mechanical system using a DC motor for movement on the X and Y axes, and a transmission mechanism by belts, pulleys, and a worm screw was made. For the Z axis, a mechanism based on a worm screw, nuts, and a stepper motor was implemented. The main board has two microcontrollers communicating in a master-slave configuration via a serial protocol. A real-time operating system (OSA) was implemented to optimize the data flow to the computer using the USB protocol, for communication with the slave microcontroller, positioning the Cartesian axes, and control the motors. The slave is responsible for monitoring the status of the encoders and limit switches, as well as the information delivery to the master. A Matlab-based user interface was developed to determine the coordinates of the holes to be drilled by processing a jpg image. This also allows the user to control the DC motors using PWM signals via configurable parameters of PID controllers. The end result is a drilling machine which able to operate both manually and via a computer, for drilling PCBs of a maximum size of 24 × 40 cm.

High-speed computer-controlled printed circuit-board drilling machine

1985 ◽  
Vol 1985 (2) ◽  
pp. 30
Author(s):  
A. Carling ◽  
R. Ford ◽  
M. Goodwin ◽  
B. Smith
Keyword(s):  
High Speed ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Drilling Machine ◽  
Printed Circuit ◽  
Computer Controlled ◽  
Speed Computer

Experimental Study on PCB Micro Drilling Force

2012 ◽  
Vol 246-247 ◽  
pp. 1017-1021 ◽  
Author(s):  
Feng Gong ◽  
Bai Qiang Chen ◽  
Ji Bin Li
Keyword(s):  
Experimental Study ◽  
Cutting Force ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Drilling Machine ◽  
Drilling Force ◽  
Printed Circuit ◽  
Market Competitiveness ◽  
Pcb Design ◽  
Micro Drilling

With the development of high density, multi-functions, miniaturization and multi-layer on printed circuit board (PCB) design, great challenges have been presented to the miniaturization of drilling on PCB. In order to meet the hole precision, quality and improve the performance, efficiency of mechanical drilling, further research should be done on the cutting state. Kistler high-precision micro-force platform was used in this paper to test and analyze the cutting force, investigate the general laws of micro drilling, and optimize the parameters for HANS PCB drilling machine. Thereby, to improve the efficiency and precision of the drilling, range of processing, and increasing market competitiveness.

Reducing Material Waste Using Six Sigma in Printed Circuit Board Assembly

2007 ◽  
Author(s):  
Naji E. Gebara ◽  
Badih Jawad
Keyword(s):  
Six Sigma ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Printed Circuit Board Assembly ◽  
Printed Circuit ◽  
Circuit Board Assembly ◽  
Project Controlling ◽  
Key Steps ◽  
The Cost ◽  
And Control

Material waste in the Printed Circuit Board Assembly consist of parts and components that are purchased above and beyond what is required to complete a project. Controlling such material waste identified in this paper as Quantity Variance is in a direct relationship to minimizing the cost of variance that increases the profitability of each job in a low volume high mix production. This Quantity Variance occurs as defects at key steps of the manufacturing process. Six sigma is used to define, measure, analyze and control occurrences resulting in the need to purchase additional components for the completion of the order.

Inkjet Printing of UV Curable Character Ink and Control of the Dried Droplets Size

2012 ◽  
Vol 463-464 ◽  
pp. 1368-1372
Author(s):  
Jiang Zhong Hang ◽  
Yin Yin Cheng ◽  
Jie Li ◽  
Li Yi Shi ◽  
Mei Hong Zhang
Keyword(s):  
Surface Tension ◽  
Inkjet Printing ◽  
Printed Circuit Board ◽  
Droplet Diameter ◽  
Acrylic Resin ◽  
Circuit Board ◽  
High Dispersion ◽  
Uv Curable ◽  
Printed Circuit ◽  
And Control

In this paper an UV-curable character ink with high dispersion and stability was prepared based on acrylic resin, acrylic monomer, photo-initiator, pigment and other additives. The viscosity, particle size and surface tension of the ink were 18~22mPas, 310~330 nm and 22~25 mNm-1 at 25oC, respectively. These features showed the possibility to inkjet printing the ink on printed circuit board (PCB). Inkjet printing with high resolution can be achieved by varying the dried droplet diameter. Applied voltage and temperature during the jetting process influenced the diameter of dried droplet.

Modal Analysis and Structure Optimization of a Printed Circuit Board NC Drilling Machine

2013 ◽  
Vol 385-386 ◽  
pp. 320-323
Author(s):  
Jia Wei Zhu ◽  
Shi De Xiao ◽  
Jian Feng ◽  
Xiang Yin Meng ◽  
Ming Ming Jiang
Keyword(s):  
Machine Tool ◽  
Modal Analysis ◽  
Dynamic Property ◽  
Primary Structure ◽  
Printed Circuit Board ◽  
Structure Optimization ◽  
Influential Factors ◽  
Circuit Board ◽  
Drilling Machine ◽  
Printed Circuit

The solid modeling of one type of printed circuit board NC drilling machine is built by Pro/Engineer, and ANSYS is applied for modal analysis. In this paper, the key influential factors of the structure of the drilling machine are found out, the structure is improved and two prioritization schemes are proposed. After analyzing the primary structure and the two optimized structures of the machine tool bed and then comparing the analysis results, the optimal scheme is proposed. The results show that the optimization improves the dynamic property and the machining precision of the drilling machine.

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